侦探小说家Richard Castle（内森·菲利安 Nathan Fillion 饰）因为一起连环杀人案结识了纽约警局的Kate Beckett（斯坦娜·卡蒂克 Stana Katic饰），并对她产生了浓厚的兴趣。虽然Beckett强烈反对，Castle最终还是凭借自己发达的人脉，在纽约警局“赖”了下来，跟在Beckett身后办案以寻找写作灵感。性格和背景迥异的两人在不断的斗嘴与摩擦中竟然渐渐培养出了默契，成了名符其实的最佳搭档。但Castle不顾Beckett的反对，私下调查Beckett母亲多年前的命案，一度导致两人的关系一度陷入僵局。当Richard那种 "随心所欲"、"自由散漫" 的作风与Beckett那种程序化的保守作风相抵触时，争论随之而来，火花也随之而来。是危险，还是浪漫？
播出日期: 2009-03-09
运行时间: 44 min
概述: Author Richard Castle joins NYC Detective Kate Beckett to help solve the case of a serial killer who is reenacting murders from Castle's novels; Castle becomes very intrigued with the murders and continues to shadow Beckett, much to her chagrin.
播出日期: 2009-03-16
运行时间: 42 min
概述: When a body of a young woman is found inside the dryer at a laundry room, Castle and Beckett uncover that the young woman worked as a nanny in the upscale building. Meanwhile, as Castle works on his "Nikki Heat" novel series he watches Beckett's actions as she works the murder case.
播出日期: 2009-03-23
运行时间: 42 min
概述: When a teenaged boy whose family has recently fallen on hard times is found dead in a boat in Central Park, Castle and Beckett must piece together the mystery behind the boy's final moments. Meanwhile, Castle mulls over leaving Martha home while he chaperones Alexis' trip to Washington, D.C.
播出日期: 2009-03-30
运行时间: 43 min
概述: The investigation behind a body found wrapped in a rug on the sidewalk leads Castle and Beckett deep inside the world of New York City politics. The partners discover a world of expensive escorts, arrogant tycoons, corrupt investigators, and the effects of betrayal.
播出日期: 2009-04-06
运行时间: 44 min
概述: Castle and Beckett investigate the murder of a women found frozen and tangled in steel bars at a construction site. The case leads them to look into an old case and also has Beckett thinking about some memories of her past.
播出日期: 2009-04-13
运行时间: 43 min
概述: A man is killing people and posing them in Vodun (Voodoo) tradition. Castle's ex-wife announces her plans to move back to New York.
播出日期: 2009-04-20
运行时间: 43 min
概述: After discovering a young woman's body stuffed awkwardly into a jewelry safe, Beckett and Castle investigate numerous cases involving murders and home invasion jewel heists.
播出日期: 2009-04-27
运行时间: 44 min
概述: Castle and Beckett investigate the murder of a woman found drowned in motor oil in a motel bathtub. They seek the help of a true crime journalist who might have a connection to the victim.
播出日期: 2009-05-04
运行时间: 44 min
概述: When a two-year-old girl is discovered missing from her home, Beckett is called in to assist with the investigation only to discover that the FBI agent in charge is, in fact, her ex-boyfriend. The two of them try to put aside their unresolved feelings as they race to find the girl, but when Castle inserts himself into the investigation, competition quickly heats up for Beckett’s attention.
播出日期: 2009-05-11
运行时间: 44 min
概述: Castle and Beckett investigate the murder of a missing plastic surgeon who is found dead in the front seat of his car after a week of being parked curbside. As they delve into the twisted world of surgery obsessed patients and secret operations, Castle experiences a fatherly rite of passage as Alexis attends her first prom. And while looking into Beckett’s past, he unearths information that could end his relationship with her forever.
